Neuro Basis: Learning (and the others implicated)

Learning is the process that allows the alteration of the memory content, however for this to take place is necessary the attention, which requires that the being is conscious and have enough motivation to want to store the stimulus. The motivation is controlled through emotion; also mood greatly influences the quantity and quality of knowledge that can be acquired.

Learning is the ability to acquire new knowledge or skills while memory is the process that allows retain that knowledge [Tortora and Grabowski (1996)].

In humans there are some steps to manage the existing information or adding the new one:


For the learning can be work, the brain must be conscious and it's very important remark the role of the emotion; that is the mental state that manages the motivation which is a drive that enables us to do something; as pay attention(then the perceptions can be processed) or what to save into the memory (also their intensity).


Phases to forming a long-term memory:


- Encoding: extraction information from the input.

  Remember that the brain does not always codes or stores correctly or completely every entry, so many times we don't remember things or are remembered incorrectly and /or incompletely.


- Consolidation: process of establishing the memory (what knowledge goes to the MLP); usually is made during the sleeping (before the dreaming phase)


- Store. Types:


- Retrieval: access to the stored knowledge


Computer Emulation: The system

The main objective of this system is receiving natural language as input, analyze the sentence, for extracting (learning) and storing (memorization) their content. Also answer questions about the concepts and their characteristics.

Language in the brain can run for some paths (from Thalamus) before arrive to the point of analyze the message (to Wernicke's area):

Hearing
Brain ears [sound] Auditory cortex [signal treatment] [language format]
Computer microphone [signal] text to speech application [text] implemented

Writing
Brain eyes [rods and cones cells] Occipital lobe [visual processing] Angular gyrus [language format]
Computer camera [computerized standard image] image processing OCR application [text] not implemented yet

Sign Language
Brain eyes [rods and cones cells] Occipital lobe [visual processing] Temporal lobe [visual association] [language format]
Computer camera [computerized standard image] image processing Sign identification and conversion [text] not implemented yet

Tact
Brain from fingers (Braille) [pressure detection] Sensory cortex [symbol and sequence decoding] [language format]
Computer robot hands Braille to Text application [text] not implemented yet
Computer keyboard key input reception (it is already) [text] implemented

There is a big difference between emulating Braille input (using a keyboard), and the rest of inputs; the message doesn't bring any emotional charge, neither is necessary to mix the data of both hemispheres.

And produce several forms of external responses:

Also some internals:




An approximate relation between the functions needed to carry out this project and the brain functional areas:

neuro flux

             interface

Thalamus



- consciousness

- configuration

Hippocampus


- attention

- tendency/source

Wernicke

- language processing

- NLP parser

- dictionary

- memory insertion

- internal language

- questions graph

Broca


- memory search

- question confirmation

Prefrontal

- learning

- lexicon

- frames

- sets

files

screen